Is it normal to be this obsessed with an anime character?

So there's this anime called Kaiji (which is really awesome by the way, I mean truly epic) and frankly I think I'm a little too obsessed with that anime in general and its main character, Kaiji Itou, in particular. I mean back in 2007 when the first season came out I was really digging it, but I didn't have these intense feelings for the main character that I now have. I really think you should google him, by the way, because everyone says he looks absolutely terrible, yet I just can't help finding him cute and sexy.

The problem is that I sort of need to be constantly thinking about Kaiji or watching the anime or looking at videos or other stuff of it, otherwise it just feels like I'm going mad or something. My sister is the same way and if I'm not constantly gushing with her about it, she'll think something's wrong. I've been neglecting my Uni. studies as far as I can without risking my future career (and that is really quite far where I live) and it doesn't help that outside from that, I have no life whatsoever.

I mean I've benefited so much from this thing: I've been happier when I'm not constantly in my head and overanalyzing things like I used to, I've gained confidence from dressing like Kaiji and listening to the uplifting music of the anime OST, and from relating to his suffering I've learned empathy which has never naturally come to me before. I know, I've had some serious issues in my life at some point. And I'm better now. But I don't want to be this obsessed. And because of all the good stuff and the happiness, I don't want to not be obsessed either. So I guess what I'm asking is, how should I moderate it a little? Find the golden mean, if you will.